TM 9-1751 Ordnance Maintenance: 9-cylinder, Radial, Gasoline Engine (Continental Model R975-C1), 1944-04-19
"The instructions contained in this manual are for the information and guidance of personnel charged with the maintenance and repair for the Continental R975-C1 engine. These instructions are supplementary to Field Manuals and Technical Manuals prepared for the using arms. This manual does not contain information which is intended primarily for the using arms, since such information is available to ordnance maintenance personnel in 100-series Technical Manuals or Field Manuals."
Digitized by AHEC (U.S. Army Heritage Collections) http://www.carlisle.army.mil/ahec/